Digivolution Line

Azulongmon first appeared in Digimon Adventure 02. He was called upon by Digidestined to help save the Holy Stones from the destructive might of BlackWarGreymon.
He managed to repel BlackWarGreymon and tried to make him find his role in Digital World.
Later he gave a portion of his power to Paildramon and Agumon in order to help them digivolve into their Mega forms Imperialdramon and WarGreymon.

Azulongmon would appear to quell the fighting between the Tamers and Zhuqiaomon, and lead everyone towards the real threat: the D-Reaper. Azulongmon also revealed the purpose of Calumon: it was formerly a Digi-Entelechy capable of causing Digimon to Digivolve, but was transformed into Calumon to hide its existence from the D-Reaper.